Device for dispensing measured quantities of powdered material



Feb. 9, 1932. c NICOLINO 1,844,260

DEVICE FOR DISPENSING MEASURED QUANTITIES OF POWDERED MATERIAL Filed Sept. 21, 1929 CO67'ANZO NIGOL/NO In venior I Attorney Patented Feb. 9, 1932 UNITED; STATES PATENT OFFICE oosranzo NICOLINO, or GEEWELAH, WASHINGTON,.ASSIQIJQB or Qua-Emma}; 5E9 MARY BEIGE, or SPOKANE, WASHINQT'QN DEVICE F r nIsrENs ne mascara vemmms or a wpaaan MATERIAL.

App n fil memb 1. .9.29. s ria ao- 3 4.3161,

My present invention relates to an improved rodent exterminator or manually operated, charge forming device, in the nature of a poison gun for distributing or depositing charges of poisonous materials, insecticides, germicides, andot-her materials in powder or dust form. While the device is adapted for various purposes it is particularly designed to deposit charges" of the p i Qn p wd r in Op ning in. h ground leading to, or forming the nests of gophers, ground squirrels and other rodents.

The primary object of my invention is the provision of a device or apparatus of this type which is adapted to receive a standard powder can as the supply agency for the material, and in addition, the device is constructed and operated in such manner as to avoid direct contact or handling of the poison powder or dust, by the person manipulating the exterminator.

In carrying out my invention I utilize means for regulating the quantity of material forming a charge, and means are provided for depositing the predetermined charges, singly, or successively as desired, in the ground-holes.

The invention consists in certain novel combinations and arrangements of parts as will hereinafter be more fully set forth and claimed. In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention wherein the parts are combined and arranged according to the best mode I have thus far devised for the practical application of the principles of my invention.

Figure 1 is a view illustrating the use of justable charge-forming hollow block which also acts as a guide for the duplex gates.

Figure 6 is a detail sectional View of part ofthe feed chute or charge forming box.

As shown in the drawings the implement includes a barrel 1 having a muzzle or nozzle end to be inserted in the ground opening and to guide the charge of material from the box or chute 2. At the top of the chute, which is preferably rectangular in cross section, a

circular,- threaded socket head or holder'3. is

secured, andthis holder is adapted to receive the screw threads of an inverted can or jar 4 in which. the powderis contained.

This can or jar is purchased in theopen market, and after its original threaded 61,9,- sure has been removed, the can 0,1. jar i screwed into the holder, after-which, when the can is inverted, the material will flow freely from the can to the box or chute 2.

One side at the charge f rm ng b x i provided with an attached plate an thi .plate is fashioned, with. exter o br ckets 6 in which the, head 7 of a Tr ever is. RiYQte at 8. The T-shaped ev r alsQ. includ s. a handle 9 which proj c s at ral y c t e plemlent and is a9C9$ ilQ Q f 115.; y @116 B6?- ator as. seen in igu 1-.

This Qne atina l ver s p d h a P of gates. lofa id .1,. r vete lat the' eiid 12 .of the, le er ead, nd. thes sales i th form of flat metal blades in her-mall herirzontal po ion, slid in slqte 13 th m ta plate farming a Wal cf t e charg ex: I

n in Figure 2 th liaeed'l ver i a rthe implement, the operating attendant,

being in the act of depositing a charge of the poison powder in a ground opening.

Figure 2 1s an enlarged, vertical sectional view of the implement, partly broken away for convenience of illustration.

Figure 3 is a transverse sectional view at M I up to dar -edre gat 11 in. normallylesed pesi ea area Qted. the b acke s, and the sates are Riv-- oted in t e. le er head, in su h ner a one g lteis area pe itiqn u e is in los d. mum with. rela Q-f transver e o the charg tanning. 1

That is, when the levershandle Q is turned 1 down infful lin s F gure 2, the 12 at 19 s 91 1311 an the leve gat is cls ed, while the uppe ga e is lQsed and th leve sa e Qpened thel ven ardle ame n in Fi re A spring 14; i smeared at and to th handle. 9; nd at its other nd s ans oiedlt the box 2 for he purpose. at bald ng as lewgates.

Figure 2 the adjustable block is in posithe area of the charge forming box to retain the material therein.

In Figure 5, a spring pressed adjustable, hollow block 15 is illustrated, that is interposed between the two gates for the purpose of guiding the slide gates, and also for the purpose of varying the capacity of the charge forming chamber 16 that is formed between the block, the lower gate and the side wall of the box. A spring 17 is located in the block and coiled about a pin 18 of the box, with one end 20 anchored to the box and the other end 19 anchored to the block, for the purpose of urging the block to the right in Figure 2 to restrict the area of this charge forming chamber. By means of a screw 21 in Figures 2 and 3 the box may be adjusted as to its position. The screw is threaded in the wall of the charge forming box, and as the hollow block is interposed between the two blades or gates 10 and 11, the block is guided by the gates as it is moved either to the right by the spring or to the left by the screw in Figure 2. As best seen in Figures 3 and 6,-the two gates slide in complementary grooves 22 in the inner faces of the walls of the charge forming box and these grooves of course hold the gates against displacement regardless of the open or closed positions of the In tion to restrict the capacity of the charge chamber and the powder or dust falls into the chamber, by gravity, from the powder can or jar, to provide a charge in the chamber The spring 14 holds the outlet gate 11 closed, while the inlet gate 10 is open, and

the charge is ready to be released. By turn- 7 ing the handle 9 upwardly to dotted line position in Figure 2, the positions of the inlet and outlet gates are reversed and the charge is free to flow from the charge forming chamber down to the ground through the barrel 1, as indicated in Figure 2. In the discharging position feed of the material into the charge forming chamber is preventthe box between the gates and co-operating therewith to form a measuring chamber in the box, and adjustable means for holding the block in fixed position.

2. In a device for dispensing measured quantities of powdered material, the combination with a box having vertically spaced pairs of grooves in its opposite side walls, and a discharge barrel, of a hollow block inserted in an open side of the box, a spring secured to the box and block for pressing the latter in one directionand' an adjustable stop mounted in the box to hold the block in fixed position, an inlet gate slidable in the grooves at the upper end of the box and an outlet gate slidable in the grooves at the lower end of the box for alternately opening and closing the box, said gates and block providing a measuring chamber in the box, a T-shaped lever pivoted exterior of the box, pivotal connections between the lever and gates, and a spring between the lever and box for normally holding the outlet gate in closed position.

In testimony whereof I aflix my signature.

. GOSTANZO NIGOLINO.

ed by the closed inlet gate 10. When the handle 9 is released the spring 14 pulls down the handle 9, closing the outlet gate and opening the inlet gate, whereupon a fresh charge 7 of material is fed by gravity into the charge I forming chamber, for subsequent use.

Havin thus fully what I claim as new and desireto secure by v Letters Patent is I 1. In a device for dispensing measured quantities of powdered material, 'the combination with a box having vertically spaced pairs of grooves in its side walls, and a discharge barrel, of a pair of gates slidable in the grooves and oppositely arranged to alterdescribed my invention,

nately open and close the box, a handle for operating the gatesfmeans for normally holding the outlet gate closed, a laterally movable block inserted in an open side of 

